The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Detection of a Radar Signal Using the Periodicity of its Autocorrelation Function

자기 상관 함수의 주기성을 이용한 레이다 신호 검출

  • Lim, Chang Heon (Pukyong National University Department of Electronic Engineering) ;
  • Kim, Hyung Jung (Radio Analysis Research Section, Electronics and Telecommunication Research Institute) ;
  • Kim, Chang Joo (Radio Analysis Research Section, Electronics and Telecommunication Research Institute)
  • Received : 2016.01.25
  • Accepted : 2016.05.12
  • Published : 2016.07.31
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Abstract

A pulse radar signal exhibits periodic appearance of pulses in time. So it leads to a high correlation between two samples separated in time by multiples of its period. In this paper, we present a spectrum sensing technique for a radar signal which exploits the periodicity of its autocorrelation function and a radar pulse interval estimation scheme in order to address the case that the radar pulse interval is not known a priori. Finally, we evaluate the sensing performance of the proposed scheme through computer simulation and compare its performances with those of energy detection.

펄스 레이다 신호는 주기적으로 일정한 펄스를 반복하는 형태를 갖는다. 따라서 주기의 정수배가 되는 시간 간격만큼 떨어진 신호 샘플들은 큰 자기 상관 값을 갖는다. 본 논문에서는 이러한 자기 상관 특성을 활용하여 레이다 신호를 검출하는 방식을 제안한다. 그리고 펄스 레이다 신호의 주기가 알려지지 않은 경우를 다루기 위하여 레이다 펄스의 주기를 추정하는 방식도 제안한다. 마지막으로 모의 실험을 통해 제안한 방식의 레이다 신호 검출 성능을 분석하고, 에너지 검파 방식과 그 성능을 비교하고자 한다.

Keywords

References

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